Active aeroelastic control aspects of an aircraft wing by using synthetic jet actuators: modeling, simulations, experiments

Abstract

This paper discusses modeling, simulations and experimental aspects of active aeroelastic control on aircraft wings by using Synthetic Jet Actuators (SJAs). SJAs, a particular class of zero-net mass-flux actuators, have shown very promising results in numerous aeronautical applications, such as boundary layer control and delay of flow separation. A less recognized effect resulting from the SJAs is a momentum exchange that occurs with the flow, leading to a rearrangement of the streamlines around the airfoil modifying the aerodynamic loads. Discussions pertinent to the use of SJAs for flow and aeroelastic control and how these devices can be exploited for flutter suppression and for aerodynamic performances improvement are presented and conclusions are outlined.

Design of a Wind Tunnel Apparatus to Assist Flow and Aeroelastic Conrtol via Zero Net Mass Flow Actuators

“…The validated analytical model will be used as a tool for control theory applications and within the formulation of the proper control laws. This research is on-going and preliminary results and discussions are presented in [10].…”

“…In this case, K  () represents the continuous nonlinear restoring moment in the pitch degree-of-freedom. The previous models have successfully produced analytical numerical solutions to the nonlinear coupled aeroelastic governing equations of motion [10,18]. However, authors have reported discrepancies between the experimental measurements and the analytical analysis [11].…”

“…The work previously conducted on optimization and the control parameters will be taken into consideration and implemented in the second phase of testing. To supplement the work being carried out at Clarkson University, the design and optimization of synthetic jets to be used in this research are being conducted in collaboration with Delft University of Technology, The Netherlands [10].…”

“…The research performed at Clarkson University includes wind tunnel experiments for aeroelastic responses and the applicability of ZNMF actuators in active flow control schemes. The theoretical and numerical models proposed in previous research needs to be validated through experimental testing [10]. To compliment the numerical efforts an aeroelastic test apparatus was designed to accommodate the parameters defined by the aeroelastic characteristics of the prescribed wing section.…”

Αριθμητική Επίλυση Προβλημάτων Αεροδυναμικής-Αεροελαστικότητας Σε Επεξεργαστές Καρτών Γραφικών

“…Οι εργασίες [172,173,174] χρησιμοποιούν σύνθετες δέσμες για τον έλεγχο της αεροελαστικής συμπεριφοράς αεροτομής δύο βαθμών ελευθερίας. Στην εργασία [175] χρησιμοποιούνται ενεργητικές τεχνικές ελέγχου της ροής μέσω δέσμης συνεχούς αναρρόφησης ή έγχυσης χρονικά μεταβαλλόμενης ή αμετάβλητης παροχής ρευστού ή σύνθετης δέσμης, με σκοπό τη μείωση των κραδασμών αεροτομής όταν εκείνη εκτίθεται σε δυναμικές φορτίσεις λόγω διαταραχών της ροής (Gust Load Alleviation).…”